Istbatbix of raid augusts pachb



May 3,1927. 1,627,172

R. GOUIRAND ET AL CLAMP Filed March 6, 1925 d INVENTOR. @we Goa/rand y//Ugase pac/7@ ATTN Patented May 3, 1927'.l

UNITED STATES PATENT oFFicE.

m GOUIBiLND All) AUGUSTE PAGHI, l' NIW YORK, N. Y.; JULIA PACE] m- IBTMTBIX Ol' SAID AUGUST! PAGHI, DICEASED.

Clam.

Dilution led mh 0, im. Serial lo. 18,484.

This invention is a clamp'ada ted for many varied uses and is partie arly d irected to that type of construction wherein the clampin is accomplished by placing a b flexible ban under tension. n The object of the invention is to provide a clamp of sim le and economical construction and one wlierein the tensiomng of the band is accomplished through the wrapping l0 of the band about a manual-ly rot table in which ma be thereafter manipulated to lock the ban inst inadvertent release.

In its preferrelfiractical form, the mvention embodies a yoke to which one end of the l band is fixed and which yoke is rovided with bearings to rotatably lock e lockpin. A conventional cotter pin is employed in the preferred vform of the mvention and after the free end of the band is 90 passed through the slit of said pin, the pin may be rotated to wind the band u n the pin and draw the body of the band a ut. the object to be clamped. After the desired tension has been applied to the band, retrograde rotation of the pin may be accomplished by bending the cotter pin in the usual manner of bend' such a pin to preclude its withdrawal. e advant D of the construction are the extreme simp icity, economy of manufacture and eciency in operation.

In another practical form of the invention, the lockin pin may be rovided with a serrated sur ace which, a is properly tensioned, may be moved into 5 coo eration with the correspondingly shaped su ace formed on the yoke, so that the pin ma be locked against inadvertent release wit out necessitating the bending of the pin. Features of the invention, other than those specified, will be ap arent from the hereinafter detailed description and claim, when read in conjunction with the accompanyingv drawings.

The accompanyi drawings illustrate different practical ein iments of the invention, but the constructions therein shown are to be understood as illustrative, only, and novas defining the limits of the invention.

1 5 one orm of the present invention.

Figures 2 and 3 are sections showing the parts in different positions.

Figure 4 is a perspective view showing r the band 1 is a perspective view showing` the parts locked in place on a member which it is desiredto clamp; and,

Figure 5 is a perspective view showing the yoke in section an illustrating a modified form of the invention.

Referring to the drawings, 1 designates a tiexible band which, in practice, is preferably of sheet metal although a fabric may be employed without departing from the invention. 2 designates a yoke which may be` in the formof4 a casting, but, in ractice, is piileferably stamped up from sheet metal.

e body of the yoke is iat and is provided with an elongated slot 3, while the opposite ends of the yoke are formed with upturned brackets 4 perforated at 5 to allow of the passage of a cotter pin 6 therethrough.

In assembling the parts, one end of the band 1 is passed through the slot 3 and returned upon itself as shown at 7 in Figure 1. The cotter pin is next assed through the alined perforations 5 an the other end 75 of the band after being passed around the ob]ect.'to be clamped is passed through the slot 6* of the cotter pin as shown best in Figures 1 and 2. If a fabric is employed, the end 7 should be stitched inl place, but if the sheet n ietal band is used no extraneous means is necessary to anchor this end of the band to the yoke as the tension on the band will drawthe yoke with suicieiit tightness agliiiinst the ob]ect to bc clamped to pre- S5 clude sengagement of the part 7 from the yoke. v

After theparts have been brought into the relative positions shown in Figure 1, any suitable implement such as a screw driver in ay be tpassed through the eye 8 of the cotter pin an the cotter pin thereupon rotated to cause the band to be wrapped about the ins after the manner shown in Fi ure 3.

his wrapping of the band about t e pin continues until the band has been placed under the necessary tension to effect the desired clamping whereupon the pin maybe locked against unwindmg by bendin the free ends of the pin legs as shown in igure 10 4. When the legs of the pin ar'e bent in this manner, they will bear against the object which has been clamped and which is designated in the drawings by the reference character X and b this engagement preclude of e pin.

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When it is desired to release the parts, the ends of the key legs may be bent into normal position whereuponthe band ma be unwound from the pin and removed rom the slot between the legs thereof. i

It will beapparent from the foregoing detailed description of the preferred formof the invention that it is unusually simple in construction. The yoke may bereadily stamped u from sheet metal and the conventional orm of Cotter pin may be used so that the manufacturing cost is nominal.

While the use of a cotter pin is preferred, We may, however, employ a pin of special construction such as illustrated in Figure 5.

In this showing, one of the holes in the brackets of the yoke is tapered and is circumferentially serrated as at A pin of special construction .is employed, the pin being made solid and having a shank slotted at 9 to receive the band. The head of the pin is enlarged and is perforated as shown at 10'to permit the introduction of an implement by which the pin is to be rotated. Against the head of the pin is a tapered flange which is serrated as shown'at 11 to correspond to the serrations 5*. The slot 9 is somewhat longer than'the width of the band to be passed therethrough.

In utilizing the modified construction of Figure 5, the pin is passed through -the alined holes in the yoke for a sufficient distance to permit the free end of the band to be passed through the slot 9, but for an insufficient distance to engage the tapered portion 11 with the serrations 5. While the parts are in this relationship, the pin 1s rotated to draw the band tight about the object to be clamped and when the desired tension has been obtained, a sharp blow is imparted to the head of the pin for the purpose of shifting the pin longitudinally for a sufficient distance to engage the serrated part 11 with the serrations 5, The engagement of these parts will lock the pin against unwinding and the band will be maintained under tension so long as this relationship between the parts remains. When it is desired to release the band a sharp knock on the free end of the pin will shift the pin in the opposite direction to disengage the serrations and the pin maybe rotated to unwind the band.

In either form of the invention, which we have described, the structure is simple and is unusually convenient to manipulate.V The device is adapted to a wide variety of uses. For example, it may beI used as a hose clamp, a radio ground clamp, a clamp for mounting broken' articles or for making temporary repairs or for' clamping insulation on steam pipes or in many other different pur oses. In some of its uses, it may be desira 1e -to mount holding or attaching devices on the band, but inasmuch as we have not shown every use to. which the invention can be put, we'have not attempted to show all of the' modifications of which it is susceptible.

The foregoing detailed descri tion sets forth the invention in its preferre practical form, but the invention is to be understood as fully commensurate with the appendedl claim.

In the accompanying drawings, we have,

shown the band as passing once around the object to be clamped and'directly to the cotter pin', although, inapratice, the ban'd l may be made lon eran passed a number of times .around t e object` before engaging with the pin.- It will therefore be noted from Figure that when the cotter in is bent,'it 1s preferably engaged with t e inclined surface 4* of the yoke, and this ar with respect to and disengaged from the' serrated perforation, 'a band, one end of which is secured to the yoke and the other end of which is passed through the lslot in the pin, whereby rotation of the pin will cause the band to be wound on-the pin, said pin being thereafter shiftable lon itudinally toengage the serrated boss with t e serrated perforation to lock the pin against inadvertent unwinding.

In testimony whereof we have signed the foregoing specification.

REN GOUIRAND. AUGUSTE PACHE. 

